Parornix alpicola (Wocke, 1877)

alpine slender

mine

The larva first makes a lower-surfsce epidermal corridor. Next the larva begins to feed on the sponge parenchyma, subsequently also the palissade parenchyma; the initial corridor becomes obliterated. The final mine is full depth, occupies half of a leaf, at one side of the midrib, and is almost flat. The upper side turns orange brown. Finally the larva vacates its mine and spins a new leaf into a pod, that is eaten from the inside. If needed still another leaf is treated the same way. Pupation in a brownish cocoon onder a folded leaf margin.

hostplants

Rosaceae, monophagous

Dryas octopetala.

phenology

Univoltine; full-fed (no longer mining) larvae in late July – early August (Emmet ao, 1985a).

distribution within Europe

Alps, Scotland.

larva

Pale greenish, head light brown. Prothoracic shield pale green with four transverse blackish spots (Emmet ao, 1985a).

pupa

Descirbed by Patočka, (2001b), Patočka & Turčáni (2005a).

synonyms

Parornix leucostola Pelham-Clinton, 1964.

references

Baldizzone (2004a), Buhr (1935b), Emmet, Watkinson & Wilson (1985a), Hering (1957a), Hoffmann (1893a), Huemer (1988a), Klimesch (1950c), Klimesch & Skala (1936b), Patočka, (2001b), Patočka & Turčáni (2005a), Pelham-Clinton (1967a).

mod 19.ix.2018